Students heard him say that he planned to “shoot up the school,” according to the prosecutor’s office.

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Teachers from Marjory Stoneman Douglas High School continued to express shock at Wednesday's shooting rampage that left 17 people dead and more than a dozen others wounded.
AP

Voorhees police said they didn’t find any weapons at Finkelstein’s home during their investigation. He is being held in Camden County Jail.

Finkelstein’s arrest came one day after 17 students and faculty members were killed during a mass shooting at a high school in Parkland, Fla.

In response to that tragedy, Eastern Regional Principal Robert M. Tull Jr. issued a statement Friday that noted the school has safety protocols in place that were developed with local and state authorities.

“We will be vigilant in regards to securing doors, screening visitors, and practicing our security drills,” Tull said. “We want our students to be diligent while feeling safe. We encourage students and parents to report concerns regarding social media posts or other sources, and to seek support when feeling unsettled.”